633461140649 has 2 divisors, whose sum is σ = 633461140650. Its totient is φ = 633461140648.

The previous prime is 633461140597. The next prime is 633461140673. The reversal of 633461140649 is 946041164336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 626258563225 + 7202577424 = 791365^2 + 84868^2 .

It is a cyclic number.

It is not a de Polignac number, because 633461140649 - 2¹⁶ = 633461075113 is a prime.

It is not a weakly prime, because it can be changed into another prime (633461140679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316730570324 + 316730570325.

It is an arithmetic number, because the mean of its divisors is an integer number (316730570325).

Almost surely, 2^633461140649 is an apocalyptic number.

It is an amenable number.

633461140649 is a deficient number, since it is larger than the sum of its proper divisors (1).

633461140649 is an equidigital number, since it uses as much as digits as its factorization.

633461140649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 47.

The spelling of 633461140649 in words is "six hundred thirty-three billion, four hundred sixty-one million, one hundred forty thousand, six hundred forty-nine".